Improvement in burners for coal-oil lamps



A. J. GIBSON.

Lamp Chimney Holder. No. 34,831. Patented Aprii 1, 1862.

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UNITED STATES PATENT OFFICE.

A. J. GIBSON, OF VORCESTER, MASSACHUSETTS.

IMPROVEMENT IN BURNERS FOR COAL-OIL LAMPS.

Specification forming part of Letters Patent No. 34,831, dated April 1,1862.

To 60% whom it may concern.-

Be it known that I, A. J. GIBSON, of Worcester, in the county ofWorcester and State of Massachusetts, have invented a new and usefulImprovement in Burners for Coal-Oil Lamps; and I do hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, making a part of thisspecification, in which- Figure 1 is a vertical central section of myinvention, taken in the line at as, Fig. 3; Fig. 2, a detached plan ortop view of the cone of the burner with the clamp and catch at tached;Fig. 3, a plan or top View of the burner.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to a new and improved mode of securing thechimney to the cone, and of securing the cone to the burner, ashereinafter fully shown and described, whereby the chimney is allowed toexpand as it heats and thereby prevented from breaking or fracturing, aresult which would occur if a rigid or unyielding chimney were employed,the invention at the same time admitting of the cone being firmlysecured to the burner, and serving as a handle to allow of the chimneyand cone being removed from the burner while hot, so that the wick-tubemay be exposed and the wick trimmed with facility at any time.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

Arepresents the burner, which may be constructed in any of the formsused for burning coal-oil. B is the wick-tube, and C the cone. The cone0 fits loosely on the burner A within its upper part, and to the base ofthe cone there is attached a radial arm D, which projects outward asuitable distance from the cone and passes through or is fitted in arecess a in the top of the burner. To the outer end of this arm D, onits upper surface, there is secured by a rivet b an elastic plate E,which is equal in length to the arm D, and is curved slightly upward atits inner end, as shown in Fig. 1. The plate E is allowed to turn freelyon its rivet b, and said plate, when in use or performing its properfunc tion, is also fitted in the recess a of the burner, and isconsequently directly over the arm D of the cone.

To the base of the cone 0 and at the side opposite to the arm D thereare attached or formed two hooks c c, which are designed to catch overthe flange at the lower end of the glass chimney, which is shown bydotted lines in Fig. 1, and this flange also fits underneath the innerend of the elastic plate E, between it and the arm D, as shown inFig. 1. This elastic plate E, it will be seen, presses down on the topof the flange, and in connection with the hooks c c firmly secures thechimney to the cone, and the plate E, it will also be seen, admits ofthe chimney freely expanding while heating, as the flange of the chimneyas the latter expands merely extends or spreads outward underneath theplate E, the side, of the chimney not being allowed to come incontactwith the inner end of the plate. This will be fully understood byreferring to Fig. 1. The hooks c e do not require to be yielding, a freemovement or expansion at one side of the chimney, as at plate E, beingsufficient to prevent fracture.

To the outer end of the arm D, at its under side, there is attached anelastic plate F. This plate may be secured to the arm D by the samerivet b which secures the plateE to its upper surface. The plate F issomewhat larger than E, and projects some distance beyond the outer endof the arm D, and also projects a trifle beyond its inner end. The plateF, like E, is elastic,'and is also allowed to turn on the rivet b, andwhen adjusted in line with the arm D its inner end fits under the loweredge or part of the burner A, as shown in Fig. 1, and secures the coneand chimney to the burner, the base of the cone at a point opposite tothe arm D fitting under a hook d at the upper edge of the burner. (SeeFig. 3.)

From the above description, therefore, it will be seen that in order toattach the chimney'to the cone 0 the flange at the bottom of the chimneyis inserted under the hooks c c of the cone and the elastic plate E thenturned over the flange, said plate being adjusted in line with the armD, and thatto secure the cone and chimney to the burner the cone isfitted in the burner underneath the its inner edge will catch under thebottom of.

the burner, as shown in Fig. 1. In order to detach the cone and .chimneyfrom the burner, all that is required is to grasp the end of arm D, orrather the outer ends of the plates E E, and turn the elastic plate F toone side, so as to remove its inner end from underneath the burner, andthe cone, Wit-h the chimney attached, may be readily removed, howeverWarm or hot the chimney may be. The Wick-tube consequently maybe exposedand the Wick rendered accessible at any time for trimming, lighting,850. By this arrangement the operator is not compelled to, touch thechimney While removing it from the burner and replacing it thereon, andthe arm D and plates E F are never sufficiently warm to prevent beinghandled and adjusted in the way and for the purpose specified.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

The removable cone 7 C, provided with the hooks c c and arm D, incombination with the elastic adjustable plates E F, attached to the armand arranged in relation with each other and respectively with thechimney and burner A, substantially as and for the purpose herein Setforth.

' A. J. GIBSON.

\Vitnesses:

RICHARDSON GAWLEY, EDW. W. HODGSON.

